Ted's Blog

I’ve been kind of obsessed with the level of Lake Lanier since the media made such a big deal about it last year or so and said it could run out of water completely, or that they might have to use dead zone water that was stored there since the beginning and completely out of oxygen. None of that ever happened and the lake is actually up 10 feet from last November. In fact, just this week it was announced that the drought is over.

Though the amount of water per inch of lake varies, an article from the AJC in January said that 1 foot of Lake Lanier is equal to 10 billion gallons of water and could supply Atlanta for 25 days. That article also said that Lake Lanier holds five times as much water as Lake Allatoona, which is now full.

Part of the problem with the water level was due to a bad gauge at the lake which led people at the dam to release billions of gallons of water, or about 2 feet.

There was a coupon in the paper recently for Trop50, a new orange juice from Tropicana with 50% less sugar. I bought a couple of half gallons of it and gave it a try this morning. It comes in a thinner taller package but otherwise looks just like Tropicana’s orange juice carton (it even has codes you can enter to save 10 square feet of rain forest like the regular juice has).

It tasted like orange juice with a diet aftertaste. I wondered how that worked and whether they were using oranges that weren’t as sweet or something. But when I (finally) looked at the label closely it was really simple: they used 58% less juice. The contents clearly say it is only 42% juice (I usually check this, but the carton threw me) and the first ingredient is water. They use PureVia Reb-A as the sweetener, which is based on Stevia. It may be natural, but it still tastes diet. The FDA banned it until this past December.

That’s the first and last time I will get Trop50.

My web page revenues continue to be way down from the glory days of 2007. The meager results: Amazon revenue was $28 and Google was $17, though my advertiser is still paying regularly for $168 in the quarter.

The big problem is traffic remains low since the migration to iGirder and the disappearance of Speedfactory (which would have necessitated the migration anyway). I am averaging just over 100 visitors per day and the majority of those are for the DeJumbler. I think at the same time there is probably a decrease in interest in iPod battery packs. My other page for fitting the Civic’s Sony radio for an iPod connection grows more and more irrelevant since newer Sony’s (and new cars and other car stereos) have connections for iPod’s built in.

Still for Amazon sales the biggest seller by a longshot was the Turbo Charge charger with 11 units sold. The Maxell pack (which I think has been discontinued) is a distant second with only 4. The most expensive item sold was an APC battery for $34.99. The most unusual items were probably three books about extreme running along with the DVD “Run, Fatboy, Run”.

If you shop at Amazon, you can stop by the iPod Battery Pack Page and visit an Amazon link, or (easier) visit the page I made that takes you straight to Amazon and either start your search or just click the ad (if you don’t see an ad, your browser is blocking it, so you should use the other page).

After getting an inquiry about making 100 MintyBoosts (which eventually did not pan out), I started doing research this past weekend to see if I could actually do it. Because the guy wanted an older version that you can’t buy printed circuit boards (PCB’s) for anymore, the big challenge would be getting those made. All of the other parts (resistors, capacitors, inductor, microchips, etc.) seemed to be available. I knew that Ladyada, the inventor of the MintyBoost, had a lot of files available for download and didn’t seem to mind sharing her design. And given her incredibly detailed instructions on how she developed the project and how someone could make it, I figured I would just have to follow the instructions.

Turns out it wasn’t quite that simple. On her downloads page she had the current design and a couple of the earlier ones available, but not the v1.2 that I wanted. But even so, the designs are in an electronic format made for the CAD software (Eagle), but not made for production. For that I would need Gerber files.

I found a page at Hackaday that talked about how to convert files in Eagle into Gerber files for a PCB fabricator. That was pretty useful and looked like I could do it. So I downloaded Eagle’s software and tried it out.

One thing Ladyada did to get a better deal on circuit boards was she combined two boards onto one. One side of the board has rounded edges, so she put the flat sides back to back and got oval boards. Then she cut them in half for two boards with rounded edges once she received them. But her Eagle file only had one board in it. I spent a while trying to figure out how to make a copy of that board before I finally realized that the free version of Eagle does not let you do this.

Continue reading “Electronics 101”

I’m not all that sophisticated an investor and mostly I am in mutual funds for the long-term. But I do buy stocks and have been kind of successful selling stocks when I get to a 20% gain and buying more share if they fall 20%. To do this I use a lot of limit orders. If I buy a stock at $100/share, I can put in a sell order that day for $120/share and a buy order for $80/share. If the price falls 20% I automatically buy more. If it goes up, I automatically sell. I like this because it keeps me from getting greedy and I don’t have to watch the market all day (or at all).

I bought some Goldman Sachs like this and when it went down 20%, I bought more, which I then sold when it went back up. Goldman has been on a yo-yo, so I’ve been able to buy and sell three times for a 20% profit each time. But I didn’t reach a 20% gain on the original shares until recently. My intention was to hold on to GS because I felt like its long-term outlook was very good and it could make a lot more than 20%. Still, it could also zoom right back down. Today it was up quite a bit and I’m into the 30% gain range. I didn’t want to sell if it would go up some more, but I don’t think I want to allow it to get below my 20% gain mark either.

So for the first time I am using a “trailing stop”. This sets a sell price a certain amount below the current price and the sell price adjusts upward as the stock price goes up. For instance, today GS was up to $105/share. So I entered a 5% trailing stop meaning if it goes down 5%, I will sell (basically at $100). However if the price were to go up to $110, the new sell price would be 95% of that, $104.50. If it goes up steadily forever, I will never sell. But if it goes down 5% at any time, the shares will sell. They could sell tomorrow.

What’s worse, if the stock market futures go down tomorrow morning before the market opens, Goldman Sachs might open at $90/share and, because that is at least 5% below my target price, the shares will be sold instantly at $90.

So there is risk all over the place. First, there is a risk the stop could trigger below my set price. Second, there could be a 5% blip downwards tomorrow before the stock goes back up again, and I would have sold and missed the rebound. Third, I could have sold the stock today at $105 and been done with it. So if the stock sells below $105, then I haven’t really gained anything at all by using a trailing stop. If I can somehow beat that price, then I might become a fan of trailing stops.

If the price goes up another $10 or so, I could change to a 10% trailing stop so that the shares wouldn’t sell on a volatile day.

I’ll let you know how this works out.